Female seat access plug and connector for electric automobile

Abstract

The utility model relates to the technical field of electric vehicle charging and discharging, and particularly discloses a female socket access plug for an electric vehicle, which can prevent a plug and a socket from loosening and breaking, and comprises a shell, a wiring assembly and a pressing assembly, a partition plate for dividing an inner cavity of the shell into an electric connection chamber and a pressing chamber is arranged in the shell, a pressing opening is formed in the top surface of the shell, a wire inlet and a needle outlet are formed in the two side surfaces of the shell, and a penetrating hole is formed above the needle outlet; the wiring assembly comprises a conductive connecting plate fixed on the inner wall of the shell and a plurality of first and second contact pins penetrating through the pin outlet and connected with the conductive connecting plate, and the conductive connecting plate is provided with a first connecting position, a second connecting position and a third connecting position; the pressing assembly comprises a pressing block in the pressing chamber, an anti-disengaging hook fixed to the side face of the pressing block and penetrating out of the penetrating hole to be connected with an external socket in a clamped mode, a spring abutting against the pressing block and the partition plate, and at least one guide limiting plate fixed to the inner wall of the shell and matched with the side face of the pressing block in a sliding and limiting mode. The utility model also discloses a connector comprising the plug.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging and discharging, in particular to a female socket access plug and a connector for an electric vehicle. Background Art

[0002] The electric vehicle charging and discharging integrated machine is a device used to charge the car battery when the electric vehicle is low on power, and to discharge the high-power electric vehicle to meet the emergency power demand during the peak period of power consumption and when there is an emergency power demand. It specifically connects the electric vehicle and the charging and discharging integrated machine through an electrical connector to achieve electrical connection and electrical signal transmission between the electric vehicle and the charging and discharging integrated machine. At present, the plug and socket of the common electric vehicle connector on the market are connected by multiple pins, and the reliability of the connection between the plug and the socket is insufficient. During the process of connecting the plug and the socket and performing the charging and discharging operation, when the connecting line is disturbed, the connection between the plug and the socket will become loose, causing the connection between the plug and the socket to be disconnected, thereby affecting the normal charging and discharging operation of the electric vehicle. Utility Model Content

[0003] Based on this, it is necessary to provide a female socket access plug and connector for electric vehicles that can prevent the plug and socket from loosening and disconnecting in order to address the above-mentioned shortcomings.

[0004] A female socket access plug for an electric vehicle, comprising:

[0005] A shell, wherein a partition is fixed to the inner cavity of the shell, the partition divides the inner cavity of the shell to form an electrical connection chamber and a pressing chamber located above the electrical connection chamber, a pressing port connected to the pressing chamber is provided on the top surface of the shell, a line inlet connected to the electrical connection chamber and used for connecting a cable is provided on one side of the shell, a needle outlet connected to the electrical connection chamber and used for plugging with an external socket is provided on the other side of the shell, and a through hole connected to the pressing chamber is provided on the side of the shell above the needle outlet;

[0006] A wiring assembly, the wiring assembly is accommodated in the electrical connection chamber, and includes a conductive connection plate fixed to the inner wall of the shell, and a plurality of first pins and a plurality of second pins passing through the pin outlet and electrically connected to the conductive connection plate, wherein the conductive connection plate is provided with a first connection position electrically connected to the first pin, a second connection position electrically connected to the second pin, and a third connection position electrically connected to the cable; and

[0007] A pressing assembly, which includes a pressing block accommodated in a pressing chamber, an anti-dropout hook fixed on the side of the pressing block and extending through a through hole, a spring located below the pressing block and respectively abutting against the pressing block and the partition, and at least one guide limit plate fixed on the inner wall of the shell and corresponding to the side of the pressing block, the side of the pressing block is provided with a protrusion that cooperates with the sliding limit of the guide limit plate, and the end of the anti-dropout hook is provided with a hook portion for engaging with a hole or slot of an external socket.

[0008] In one embodiment, the wire inlet and the needle outlet are located on two opposite sides of the housing.

[0009] In one embodiment, the wire inlet and the needle outlet are located on two adjacent sides of the housing.

[0010] In one embodiment, the shell includes a male shell and an end cover, the partition is accommodated in the male shell and fixedly connected to the inner wall of the male shell, the pressing port is opened on the top surface of the male shell, the needle outlet and the connection hole are opened on the same side of the male shell, and a plug interface is opened on the other side of the male shell, the end cover is embedded in the plug interface and fixedly connected to the male shell, and the line inlet passes through two opposite sides of the end cover, and the conductive connecting plate is fixed on the end cover.

[0011] In one embodiment, the shell further includes a guide plug ring located on the outside of the male shell, the guide plug ring is fixedly connected to the outer side of the male shell and surrounds the needle outlet, the needle outlet includes a plurality of first interfaces corresponding to each first pin and a plurality of second interfaces corresponding to each second pin, a first protective cover is fixed to the edge of each first interface in the guide plug ring, and a second protective cover is fixed to the edge of each second interface in the guide plug ring, and the height of the first protective cover and the second protective cover is less than or equal to the distance between the two end faces of the guide plug ring.

[0012] In one of the embodiments, a guide limit plate fixedly connected to the inner wall of the shell is provided on each of the two opposite sides of the pressing block, and M guide bars are provided in parallel on a side of the guide limit plate adjacent to the pressing plate, and the guide bars are extended along the extension and contraction direction of the spring, M is an integer greater than or equal to 2, and the side of the pressing block is provided with M-1 protrusions corresponding to the guide limit plates, and the protrusions are embedded one-to-one between two adjacent guide bars and are slidably connected to the guide limit plate.

[0013] In one embodiment, the pressing assembly also includes a pressing plate fixed on the top surface of the pressing block, the top surface of the pressing block is provided with a positioning groove, and the lower surface of the pressing plate is provided with a positioning column, and the positioning column is inserted into the positioning groove and bonded to the inner wall of the positioning groove.

[0014] In one embodiment, the pressing plate is a flat sheet structure.

[0015] In one embodiment, the pressing opening is a U-shaped notch that passes through the top surface of the shell and the upper parts of the two opposite side surfaces of the shell. The two sides of the pressing plate are bent toward the pressing block to form a bent portion. When the spring is extended, there is a preset distance between the bent portion and the bottom of the U-shaped notch on the shell.

[0016] The utility model also discloses a connector, which includes the above-mentioned female socket access plug for electric vehicles, and also includes a socket that is plugged and matched with the female socket access plug for electric vehicles, the socket including a mounting bracket, a pin assembly, a pin pressure plate and a lining plate, the upper part of the mounting bracket is provided with a socket or a slot for inserting an anti-drop hook of the female socket access plug for electric vehicles, the socket or the slot is provided with a locking position for limiting abutment with the hook part, one side of the mounting bracket is provided with a first mounting groove below the socket or the slot, and the other side of the mounting bracket is provided with a second mounting groove below the socket or the slot, the pin pressure plate is embedded in the first mounting groove and fixedly connected to the mounting bracket, the lining plate is embedded in the second mounting groove and is sealed with the inner wall of the second mounting groove, the pin assembly includes a plurality of third pins corresponding to each first pin and a plurality of fourth pins corresponding to each second pin, the third pin and the fourth pin are sequentially penetrated by the pin pressure plate, the mounting bracket and the lining plate and are electrically connected to the controller of the charging and discharging integrated machine.

[0017] The female socket access plug and connector for electric vehicles of the utility model are implemented, and a pressing plate and an anti-disconnection hook fixed on the pressing plate are arranged on the plug. The anti-disconnection hook cooperates with the corresponding hole or slot on the socket to lock the plug and the socket to prevent the plug and the socket from being disconnected due to external disturbance in the connected state, thereby ensuring the stability of the connection between the plug and the socket and the reliability of the charging and discharging operation of the electric vehicle; by arranging a spring, after the pressing block is compressed and drives the anti-disconnection hook to move downward to separate the plug and the socket, the anti-disconnection hook automatically resets, so that the next time the plug and the socket are connected, the anti-disconnection hook can be embedded in the socket and locked with the socket, reducing the difficulty of the limit connection between the plug and the socket; by arranging a guide limit plate, the anti-disconnection hook can be prevented from deflecting or even failing due to shaking of the pressing block when pressed, thereby ensuring the reliability of the limit connection between the plug and the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a female socket for accessing a plug for an electric vehicle in one embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of a female socket access plug for an electric vehicle in one embodiment of the utility model;

[0020] Figure 3This is a schematic diagram of the structure of a socket in one embodiment of the utility model;

[0021] Figure 4 The figure is a schematic diagram of the exploded structure of a socket in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] Please combine Figure 1 and Figure 2 The utility model discloses a female socket access plug 10 for an electric vehicle, which can prevent the plug and socket from loosening and disconnecting. The plug includes a shell 100, a wiring assembly 200 and a pressing assembly 300, wherein the shell 100 is used to provide a wiring place and a protective device for the wiring assembly 200, the wiring assembly 200 is used to separate the wire cores transmitting different signals in the external cable, and the pressing assembly 300 is used to provide a limiting portion between the plug and the external socket to improve the stability of the connection between the plug and the external socket. Specifically, a partition 110 is fixed to the inner cavity of the shell 100, and the partition 110 divides the inner cavity of the shell 100 to form an electrical connection chamber 120 and a pressing chamber 130 located above the electrical connection chamber 120. In this embodiment, the partition 110 divides the inner cavity of the shell 100 into completely independent electrical connection chambers 120 and pressing chambers 130, and no corresponding through holes are provided on the partition 110. The connection portion between the partition 110 and the shell 100 is sealed to prevent external rainwater from entering the electrical connection chamber 120 through the pressing chamber 130 to prevent leakage accidents. A pressing port 140 connected to the pressing chamber 130 is formed on the top surface of the shell 100, a line inlet 150 connected to the electrical connection chamber 120 and used for connecting a cable is formed on one side of the shell 100, a needle outlet 160 connected to the electrical connection chamber 120 and used for plugging into an external socket is formed on the other side of the shell 100, and a through hole 170 connected to the pressing chamber 130 is formed on the side of the shell 100 above the needle outlet 160.

[0024] In this embodiment, the ring side surface of the housing 100 includes four side surfaces that are sequentially connected and form a ring. The arrangement of the wire inlet 150 and the needle outlet 160 on the outer surface of the housing 100 includes two situations. One is that the wire inlet 150 and the needle outlet 160 are located on two opposite sides of the housing 100, that is, the line connecting the wire inlet 150 and the needle outlet 160 passes through the center of the housing 100; the other is that the wire inlet 150 and the needle outlet 160 are located on two adjacent sides of the housing 100, that is, the line connecting the wire inlet 150 and the center of the housing 100 is perpendicular to the line connecting the needle outlet 160 and the center of the housing 100. Preferably, the wire inlet 150 and the needle outlet 160 are located on two opposite sides of the housing 100, for example, the wire inlet 150 and the needle outlet 160 are respectively located on the left and right end surfaces of the housing 100, so as to reduce the difficulty of arranging the wiring assembly 200.

[0025] The wiring assembly 200 is accommodated in the electrical connection chamber 120, and includes a conductive connection plate 210 fixed to the inner wall of the housing 100, and a plurality of first pins 220 and a plurality of second pins 230 that penetrate the pin outlet 160 and are electrically connected to the conductive connection plate 210. The diameter of the first pin 220 is greater than the diameter of the second pin 230. In this embodiment, the number of the first pins 220 is three, and the number of the second pins 230 is four. The first pins 220 are used to achieve electrical connection between the plug and the socket, and the second pins 230 are used to achieve data transmission between the plug and the socket. The conductive connection plate 210 is provided with a first connection position 211 electrically connected to the first pin 220, a second connection position 212 electrically connected to the second pin 230, and a third connection position 213 electrically connected to the cable, that is, the conductive connection plate 210 includes three first connection positions 211 corresponding to the three first pins 220 and three second connection positions 212 corresponding to the three second pins 230. Preferably, screw holes 214 are diagonally provided on the conductive connecting plate 210 , and the conductive connecting plate 210 is fixed to the inner wall of the housing 100 by screws to avoid poor contact inside the plug caused by loose conductive connecting plate 210 .

[0026] The pressing assembly 300 includes a pressing block 310 accommodated in the pressing chamber 130, an anti-disconnection hook 320 fixed on the side of the pressing block 310 and passing through the through hole 170, a spring 330 located below the pressing block 310 and respectively abutting against the pressing block 310 and the partition 110, and at least one guide limit plate 340 fixed on the inner wall of the housing 100 and corresponding to the side of the pressing block 310, a protrusion 311 is provided on the side of the pressing block 310 for sliding and limiting with the guide limit plate 340, and a hook portion for engaging with a hole or slot of an external socket is provided at the end of the anti-disconnection hook 320. The spring 330 is used to provide a restoring force when the pressing block 310 is reset, so that the anti-disconnection hook 320 can be reset under the drive of the spring 330 after being separated from the corresponding hole or slot of the socket, so that the anti-disconnection hook 320 can be accurately embedded in the corresponding hole or slot of the socket and locked when the plug is connected to the socket next time.

[0027] In one embodiment, the housing 100 includes a male housing 180 and an end cover 190, the partition 110 is accommodated in the male housing 180 and fixedly connected to the inner wall of the male housing 180, the pressing port 140 is opened on the top surface of the male housing 180, the needle outlet 160 and the through hole 170 are opened on the same side of the male housing 180, the other side of the male housing 180 is opened with a plug interface, the end cover 190 is embedded in the plug interface and fixedly connected to the male housing 180, and the line inlet 150 passes through two opposite sides of the end cover 190, and the conductive connection plate 210 is fixed on the end cover 190. Preferably, the connection portion between the end cover 190 and the male housing 180 is provided with a sealing ring or coated with a sealant to prevent external rainwater from entering the electrical connection chamber 120 through the connection portion between the end cover 190 and the male housing 180, thereby preventing leakage accidents. In addition, in this embodiment, by disposing the end cover 190 on one side of the cable inlet 150 , the difficulty of assembling the cable and the conductive connecting plate 210 inside the plug can be reduced.

[0028] Furthermore, the shell 100 also includes a guide plug ring 101 located on the outside of the male shell 180. The guide plug ring 101 is fixedly connected to the outer side of the male shell 180 and surrounds the needle outlet 160. The needle outlet 160 includes a plurality of first interfaces corresponding to each first pin 220 and a plurality of second interfaces corresponding to each second pin 230. A first protective cover 102 is fixed to the edge of each first interface in the guide plug ring 101, and a second protective cover 103 is fixed to the edge of each second interface in the guide plug ring 101. The height of the first protective cover 102 and the second protective cover 103 is less than or equal to the distance between the two end faces of the guide plug ring 101. That is to say, the first protective cover 102 is sleeved on the first pin 220 and fixedly connected to the edge of the first interface, the second protective cover 103 is sleeved on the second pin 230 and fixedly connected to the edge of the second interface, sealant is filled between the inner wall of the first protective cover 102 and the outer surface of the first pin 220, and sealant is filled between the inner wall of the second protective cover 103 and the outer surface of the second pin 230 to prevent rainwater from entering the electrical connection chamber 120 through the first protective cover 102 and the second protective cover 103, thereby achieving waterproof protection of the conductive connection plate 210.

[0029] In one embodiment, two opposite sides of the pressing block 310 are respectively provided with a guide limit plate 340 fixedly connected to the inner wall of the housing 100, and a side of the guide limit plate 340 adjacent to the pressing plate 350 is parallelly provided with M guide bars 341, and the guide bars 341 are extended along the expansion and contraction direction of the spring 330, where M is an integer greater than or equal to 2, and the side of the pressing block 310 is provided with M-1 protrusions 311 corresponding to the guide limit plates 340, and the protrusions 311 are embedded between two adjacent guide bars 341 one by one and are slidably connected to the guide limit plates 340. Preferably, in this embodiment, the protrusions 311 can be a convex strip structure or a convex point. By fixing the guide limit plate 340 on the inner wall of the shell 100 and setting a protrusion 311 on the side of the pressing plate 350, when the pressing plate 350 is pressed down or bounced up by the spring 330, the pressing plate 350 is always lifted and lowered along the height direction of the shell 100 due to the mutual constraint between the protrusion 311 and the guide bar 341 on the guide limit plate 340, so as to avoid the shaking of the pressing block 310 during the lifting process and prevent the anti-disconnection hook 320 from being difficult to align with the corresponding hole on the socket due to lateral deviation of the pressing block 310, so as to ensure the reliability of the limit between the plug and the socket.

[0030] The pressing assembly 300 also includes a pressing plate 350 fixed on the top surface of the pressing block 310. The top surface of the pressing block 310 is provided with a positioning groove 312. The lower surface of the pressing plate 350 is provided with a positioning column. The positioning column is inserted into the positioning groove 312 and adhered to the inner wall of the positioning groove 312 to achieve a fixed connection between the pressing plate 350 and the pressing block 310. In this embodiment, by fixing the pressing plate 350 on the pressing block 310, on the one hand, a pressing portion is provided when the anti-off hook 320 is adjusted, reducing the wear problem of the pressing block 310 caused by directly touching the pressing block 310. On the other hand, the pressing block 310 can be limited along the length direction of the shell 100 (i.e., from the wire inlet 150 to the needle outlet 160). The pressing plate 350 abuts against the edge of the pressing port 140, which can reduce the displacement of the pressing block 310 in the length direction of the shell 100. In one embodiment, the pressing plate 350 is a flat sheet structure, and the pressing opening 140 is a through hole that is only opened on the top surface of the shell 100, and the inner contour shape of the through hole is adapted to the outer contour shape of the pressing plate 350. In another embodiment, the pressing opening 140 is a U-shaped notch that passes through the top surface of the shell 100 and the upper part of the two opposite side surfaces of the shell 100, and the two sides of the pressing plate 350 are bent toward the direction close to the pressing block 310 to form a bent portion. This structure is used to adapt to the situation where the corner of the outer surface of the shell 100 has a rounded edge. When the spring 330 is extended, there is a preset distance between the bent portion and the bottom of the U-shaped notch on the shell 100, and the distance needs to meet the stroke of the pressing plate 350 to ensure that when the pressing plate 350 is pressed down to the edge of the pressing opening 140, the hook portion at the end of the anti-detachment hook 320 can be detached from the hole or slot of the socket.

[0031] Please combine Figure 1-4The utility model also discloses a connector, which includes the above-mentioned female socket access plug 10 for electric vehicles, and also includes a socket 20 that is plugged and matched with the female socket access plug 10 for electric vehicles, and the socket 20 includes a mounting bracket 201, a pin assembly, a pin pressure plate 202, and a lining plate 203. The upper part of the mounting bracket 201 is provided with a plug hole or slot 204 for inserting the anti-disconnection hook 320 of the female socket access plug 10 for electric vehicles, and the plug hole or slot 204 is provided with a locking position for limiting abutment with the hook part. Preferably, in this embodiment, when the upper part of the mounting bracket 201 is provided with a plug hole, the anti-disconnection hook 320 penetrates from one side of the plug hole and passes out from the other side of the plug hole, and the hook part of the anti-disconnection hook 320 is limitedly abutted with the outer edge of the other side of the plug hole, that is, the outer edge of the other side of the plug hole constitutes the locking position of this embodiment. When a slot is provided at the top of the mounting bracket 201, the slot is a stepped slot, and the width of the slot adjacent to the insertion side of the anti-slip hook 320 is smaller than the width of the slot away from the insertion side of the anti-slip hook 320, that is, the portion of the slot adjacent to the insertion side of the anti-slip hook 320 is the small-diameter end, and the portion of the slot away from the insertion side of the anti-slip hook 320 is the large-diameter end, and the transition portion between the small-diameter end and the large-diameter end forms a step portion, which is the locking position of this embodiment. A first mounting groove 205 is formed on one side of the mounting bracket 201 below the socket or slot 204, and a second mounting groove 206 is formed on the other side of the mounting bracket 201 below the socket or slot 204. The pin pressing plate 202 is embedded in the first mounting groove 205 and fixedly connected to the mounting bracket 201, and the lining plate 203 is embedded in the second mounting groove 206 and sealedly connected to the inner wall of the second mounting groove 206. The pin assembly includes a plurality of third pins 207 corresponding to each first pin 220 and a plurality of fourth pins 208 corresponding to each second pin 230. The third pins 207 and the fourth pins 208 are sequentially penetrated through the pin pressing plate 202, the mounting bracket 201 and the lining plate 203 and are electrically connected to the controller of the charging and discharging machine.

[0032] In the above connector, when the socket 20 and the plug are plugged together and the anti-disconnection hook 320 of the plug is inserted into the jack or slot 204, the hook portion of the anti-disconnection hook 320 is pressed against the lock position. At this time, if a pulling force is applied to the plug away from the socket 20, the anti-disconnection hook 320 is difficult to be separated from the jack or slot 204 due to the mutual restraint between the hook portion and the lock position, thereby achieving the limited fit between the plug and the socket 20. When the plug and the socket 20 need to be disassembled, only the pressing block 310 needs to be pressed down, and the pressing block 310 drives the anti-disconnection hook 320 to move downward, so that the hook portion is separated from the lock position. At this time, only the plug needs to be pulled away from the socket 20 to achieve the disconnection between the plug and the socket 20.

[0033] In the implementation of the female socket access plug and connector for electric vehicles of the utility model, a pressing plate 350 and an anti-detachment hook 320 fixed on the pressing plate 350 are arranged on the plug. The anti-detachment hook 320 cooperates with the corresponding hole or slot on the socket 20 to lock the plug and the socket 20, so as to prevent the plug and the socket 20 from being disconnected by external disturbance in the connected state, thereby ensuring the stability of the connection between the plug and the socket 20 and the reliability of the charging and discharging operation of the electric vehicle; by arranging the spring 330, after the pressing block 310 is pressed and drives the anti-detachment hook 320 to move downward to separate the plug and the socket 20, the anti-detachment hook 320 automatically resets, so that the next time the plug and the socket 20 are connected, the anti-detachment hook 320 can be embedded in the socket 20 and locked with the socket 20, thereby reducing the difficulty of the limited connection between the plug and the socket 20; by arranging the guide limit plate 340, the anti-detachment hook 320 can be prevented from deflecting or even failing due to shaking when the pressing block 310 is pressed, thereby ensuring the reliability of the limited connection of the plug and the socket 20.

[0034] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A female socket access plug for an electric vehicle, characterized in that: include: A shell, wherein a partition is fixed to the inner cavity of the shell, the partition divides the inner cavity of the shell to form an electrical connection chamber and a pressing chamber located above the electrical connection chamber, a pressing port connected to the pressing chamber is provided on the top surface of the shell, a line inlet connected to the electrical connection chamber and used for connecting a cable is provided on one side of the shell, a needle outlet connected to the electrical connection chamber and used for plugging with an external socket is provided on the other side of the shell, and a through hole connected to the pressing chamber is provided on the side of the shell above the needle outlet; A wiring assembly, the wiring assembly is accommodated in the electrical connection chamber, and includes a conductive connection plate fixed to the inner wall of the shell, and a plurality of first pins and a plurality of second pins passing through the pin outlet and electrically connected to the conductive connection plate, wherein the conductive connection plate is provided with a first connection position electrically connected to the first pin, a second connection position electrically connected to the second pin, and a third connection position electrically connected to the cable; as well as A pressing assembly, which includes a pressing block accommodated in a pressing chamber, an anti-detachment hook fixed on the side of the pressing block and passing through a through hole, a spring located below the pressing block and respectively abutting against the pressing block and the partition, and at least one guide limit plate fixed on the inner wall of the shell and corresponding to the side of the pressing block, the side of the pressing block is provided with a protrusion that cooperates with the sliding limit of the guide limit plate, and the end of the anti-detachment hook is provided with a hook portion for clamping with a hole or slot of an external socket.

2. The female socket access plug for electric vehicle according to claim 1, characterized in that: The line inlet and the needle outlet are located on two opposite sides of the housing.

3. The female socket access plug for electric vehicle according to claim 1, characterized in that: The line inlet and the needle outlet are located on two adjacent side surfaces of the housing.

4. The female socket access plug for electric vehicle according to claim 2 or 3, characterized in that: The shell includes a male shell and an end cover, the partition is accommodated in the male shell and fixedly connected to the inner wall of the male shell, the pressing port is opened on the top surface of the male shell, the needle outlet and the connection hole are opened on the same side of the male shell, and a plug interface is opened on the other side of the male shell, the end cover is embedded in the plug interface and fixedly connected to the male shell, and the line inlet passes through two opposite sides of the end cover, and the conductive connecting plate is fixed on the end cover.

5. The female socket access plug for electric vehicle according to claim 4, characterized in that: The shell also includes a guide plug ring located on the outside of the male shell, the guide plug ring is fixedly connected to the outer side of the male shell and surrounds the needle outlet, the needle outlet includes a plurality of first interfaces corresponding to each first pin and a plurality of second interfaces corresponding to each second pin, a first protective cover is fixed to the edge of each first interface in the guide plug ring, and a second protective cover is fixed to the edge of each second interface in the guide plug ring, and the height of the first protective cover and the second protective cover is less than or equal to the distance between the two end faces of the guide plug ring.

6. The female socket access plug for electric vehicle according to claim 1, characterized in that: A guide limit plate fixedly connected to the inner wall of the shell is respectively provided on two opposite sides of the pressing block, and M guide bars are arranged in parallel on a side of the guide limit plate adjacent to the pressing plate, and the guide bars are extended along the extension and contraction direction of the spring, M is an integer greater than or equal to 2, and M-1 protrusions corresponding to the guide limit plates are provided on the side of the pressing block, and the protrusions are embedded between two adjacent guide bars one by one and are slidably connected to the guide limit plate.

7. The female socket access plug for electric vehicle according to claim 1, characterized in that: The pressing assembly also includes a pressing plate fixed on the top surface of the pressing block. The top surface of the pressing block is provided with a positioning groove. The lower surface of the pressing plate is provided with a positioning column. The positioning column is inserted into the positioning groove and bonded to the inner wall of the positioning groove.

8. The female socket access plug for electric vehicle according to claim 7, characterized in that: The pressing plate is a flat sheet structure.

9. The female socket access plug for electric vehicle according to claim 7, characterized in that: The pressing opening is a U-shaped notch that passes through the top surface of the shell and the upper parts of the two opposite side surfaces of the shell. The two sides of the pressing plate are bent toward the pressing block to form a bent portion. When the spring is extended, there is a preset distance between the bent portion and the bottom of the U-shaped notch on the shell.

10. A connector, characterized in that: The electric vehicle female socket access plug comprises the female socket access plug of any one of claims 1 to 9, and also comprises a socket that is plugged into and matched with the female socket access plug of the electric vehicle, the socket comprising a mounting bracket, a pin assembly, a pin pressure plate and a lining plate, the upper part of the mounting bracket is provided with a socket or a slot for inserting an anti-drop hook of the female socket access plug of the electric vehicle, the socket or the slot is provided with a locking position for limiting abutment with the hook part, one side of the mounting bracket is provided with a first mounting groove below the socket or the slot, and the other side of the mounting bracket is provided with a second mounting groove below the socket or the slot, the pin pressure plate is embedded in the first mounting groove and fixedly connected to the mounting bracket, the lining plate is embedded in the second mounting groove and is sealed with the inner wall of the second mounting groove, the pin assembly comprises a plurality of third pins corresponding to each first pin and a plurality of fourth pins corresponding to each second pin, the third pin and the fourth pin are sequentially penetrated by the pin pressure plate, the mounting bracket and the lining plate and are electrically connected to the controller of the charging and discharging integrated machine.

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